JP2007172977A - Dial type operation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact-structured dial type operation device reduced in constraint in designing. <P>SOLUTION: This dial type operation device is provided with a dial operation part 10, a displacement conversion means converting rotation angle displacement generated in the dial operation part 10 according to rotational operation of the dial operation part 10 into axis directional displacement generated in the rotation axis line direction of the dial operation part 10, and a displacement detection output means 70 detecting the converted axis directional displacement and outputting the rotational angle positional information of the dial operation part 10 based on the detection result. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dial type operating device used for operating an electronic device provided in a vehicle (particularly an automobile).

Japanese Patent Laid-Open No. 11-273506 JP 2000-67696 A JP 2001-184969 A

  In a vehicle such as an automobile, an operation unit for operating an electronic device to be mounted, for example, an air conditioner, a car audio system, and a car navigation system is provided in the vehicle. The operation unit is provided with an operation unit for a vehicle occupant to operate as necessary. Among these, dial type operation devices are often used for air volume adjustment operation units, temperature adjustment operation units or outlet selection operation units of air conditioners, volume operation units of car audio systems, and the like (Patent Documents 1 to 3).

  In the dial type operation device of Patent Documents 1 to 3, a non-rotating auxiliary device such as a push switch or an LED display unit is incorporated in the center including the rotation axis of the dial operating unit, and interference with the auxiliary device. In order to avoid this, consideration has been given to providing a rotational displacement detecting portion of the dial operation portion at the dial outer peripheral position. In Patent Document 1, the angular position information of the dial operation unit is obtained by a variable resistance using a carbon resistance film printed on the substrate along the dial circumferential direction. On the other hand, in Patent Documents 2 and 3, a small gear is attached to a rotary shaft of a rotary variable resistor arranged on the outer side in the radial direction of the dial, and meshed with a large gear formed on the outer peripheral surface of the dial, thereby reducing the rotational displacement of the dial. It transmits to the rotary variable resistor.

  However, in the configuration of Patent Document 1, it is necessary to print and form a large arc-shaped carbon resistive film on a substrate corresponding to the operation panel, leading to an increase in substrate cost and a plane for arranging the carbon resistive film. There is a drawback that extra space is required, and space for other circuit elements is pressed, resulting in poor board mounting efficiency. On the other hand, in Patent Documents 2 and 3, a rotary variable resistor and a small gear having a large plane occupying space must be arranged outside the dial, and the area of the dial background portion of the operation panel must be increased. , Restrictions on dimensions or design increase. In particular, when a plurality of dials are arranged in parallel on the operation panel, there is a problem that adjacent dials cannot be brought closer than a certain distance determined by the dimensions of the small gears and the like.

  The subject of this invention is providing the dial type operating device which can be comprised compactly and has few restrictions on a design.

Means for Solving the Problems and Effects of the Invention

  The dial type operating device of the present invention converts a rotational angle displacement generated in the dial operation unit and the dial operation unit in accordance with the rotation operation of the dial operation unit into an axial direction displacement generated in the rotation axis direction of the dial operation unit. Displacement conversion means and displacement detection output means for outputting rotational angle position information of the dial operation unit based on the converted axial displacement are provided.

  In the dial type operating device of the present invention, the rotational angular displacement generated in the dial operating portion is converted into the axial displacement, and the rotational angular position information of the dial operating portion is output based on the axial displacement. That is, since the displacement detection direction is the rotational axis direction of the dial operation unit, the plane occupation space required for the displacement detection is small, and the area occupied by the mechanism inevitably generated outside the dial operation unit can be reduced. As a result, the dial type operating device can be configured in a compact manner, and the design restrictions are small and it is possible to cope with a flexible design.

  In particular, when the following configuration is employed, the above effect is more effectively exhibited. That is, the end surface on the operated side in the rotation axis direction of the dial operation portion is the first end surface, the opposite end surface is the second end surface, and the dial operation portion is configured to have a cylindrical main body portion, A non-rotating auxiliary device is incorporated inside the main body so as to be exposed on the first end face side of the dial operation section. The displacement detection output means is provided outside the auxiliary device in the radial direction with respect to the rotation axis. Since the occupied area itself of the displacement detection output means is small, even when the vicinity of the rotational axis of the dial operation unit is occupied by the auxiliary device, the influence of the space wrinkling can be reduced.

  The main body can be mounted on the housing so as to be rotatable around the rotation axis and the position of the first end face in the rotation axis is unchanged. In this case, the displacement converting means may have a displacement forming surface formed in a spiral gradient shape along the circumferential direction of the second end surface of the main body. The displacement detection output means is provided on the support base so as to face the axial displacement forming surface at a predetermined angular position around the rotational axis, and detects the position of the displacement forming surface in the rotational axis direction. The directional position detection unit is configured. According to this configuration, the displacement forming surface is formed on the second end surface of the cylindrical main body, and the axial position detection unit on the support base side changes the axial position of the displacement forming surface in accordance with the rotational displacement of the dial operation unit. By detecting, the rotation angle position of the dial operation unit can be known with a more compact configuration.

  Next, the dial type operating device of the present invention is formed separately from the dial operating unit, and is arranged so as to be displaceable in the axial direction of the dial operating unit, and a rotation operation applied to the dial operating unit. A displacement conversion transmission mechanism that converts the displacement into a displacement in the operation axis direction and transmits the displacement to the detection displacement portion can be configured. The displacement detection output means can detect the position in the axial direction of the detected displacement portion and output rotation angle position information based on the detection result. By providing a detection displacement part that is separate from the dial operation part and transmitting the rotational operation displacement of the dial operation part to this by a displacement conversion transmission mechanism, the detection position of the converted axial displacement is detected by the detection displacement part. It can be set flexibly depending on the arrangement form, and as a result, the interference between the displacement detection output means and the dial operation unit hardly occurs, and the part arrangement form can be simplified.

  The displacement detection output means has a sliding electrical contact portion that advances and retreats integrally with the detection displacement portion in the rotation axis direction, and a resistance conductor that is formed in the rotation axis direction and is resistance-divided by the sliding electrical contact portion. A variable resistor can be provided. According to this configuration, the longitudinal direction of the resistance conductor of the variable resistor can be made coincident with the direction of the rotation axis, and as a result, the plane occupation space of the variable resistor can be greatly reduced. Also, by adopting a variable resistor, the rotation angle position information of the dial operation part can be easily taken out as a voltage output, and the absolute angle position of the dial operation part can be directly read from the voltage value, so that the counter Extra circuit elements such as are also unnecessary.

  The displacement conversion transmission mechanism can include an intermediate displacement portion that moves forward and backward in the rotational axis direction following the rotational operation displacement in both forward and reverse directions of the dial operation portion. The end face on the operated side in the rotation axis direction of the dial operation portion is the first end face, and the end face on the opposite side is the second end face, while the direction from the first end face to the second end face in the rotation axis direction is the forward direction. When the reverse direction is the reverse direction, a reverse biasing means for biasing the detection displacement portion toward the intermediate displacement portion in the reverse direction is provided. When the intermediate displacement portion moves forward, the detection displacement portion is provided. The intermediate displacement portion is driven in the forward direction against the urging force of the reverse urging means, and when the intermediate displacement portion moves backward, the intermediate displacement portion follows the intermediate displacement portion by the urging force of the reverse urging means. It can be driven. If a reverse biasing means is provided, only the intermediate displacement portion can be moved back and forth in both directions, and the detection displacement portion can be moved even when the intermediate displacement portion is retracted by simply contacting it with the detection displacement portion. It can be moved following. The backward biasing means has an elastic member provided on the opposite side of the intermediate displacement portion with respect to the detection displacement portion in the rotation axis direction, and a support base that supports the elastic member from the opposite side of the detection displacement portion, The elastic member can be compressed between the intermediate displacement portion and the support base with a displacement corresponding to the forward stroke of the intermediate displacement portion. By using the elastic member, the function of the backward biasing means can be realized very simply.

  Next, the displacement conversion transmission mechanism is provided on the second end face side of the dial operation portion, and is a cam sliding surface having a spiral gradient shape along the rotational circumferential direction of the dial operation portion (a subordinate concept of the aforementioned displacement formation surface). As an axial displacement part that advances and retreats in the rotational axis direction by sliding along the cam sliding surface with the forward and reverse rotation of the dial operation part. It can comprise with the cam mechanism provided with this cam follower. By adopting the cam mechanism, the displacement conversion transmission mechanism can be configured very simply.

  The cam sliding surface can be formed in a stepped shape in which flat surface sections and inclined surface sections are alternately formed along the rotational circumferential direction of the dial operation portion. This configuration is effective for detecting the angular position of the dial operation unit step by step, as long as it is within the flat surface section, even if the rotational displacement of the dial operation unit is changed, all are detected as the same angular position. is there. From another viewpoint, the angular position detection of the dial operation unit can be mechanically quantized according to the formation of the flat surface section, and there is an advantage that a mechanism for electrically quantizing the output using a threshold value is unnecessary. It can be said. Further, since the component moment in the circumferential direction of the cam sliding surface accompanying the contact of the cam follower does not occur in the flat surface section, it is easy to hold the angular position of the dial operation section in the flat surface section.

  Next, when the dial operation unit is configured to have a cylindrical main body as described above, a cam sliding surface (displacement forming surface: cam portion) can be formed on the end surface of the main body, It is not necessary to secure an extra space in the radial direction of the dial operation portion for forming the cam sliding surface. In this case, the main body can be extrapolated concentrically with respect to the rotational support convex portion having a cylindrical outer peripheral surface that protrudes from the front surface of the housing, and is operated at the base end position of the rotational support convex portion. The panel can be formed with an annular groove portion that conceals the cam portion formed on the second end face side of the main body portion in a form surrounding the periphery of the rotation support convex portion. Thus, the cam profile formed at the second end of the main body can be concealed, and the appearance of the dial operation unit can be improved. In this case, the cam follower may be arranged so as to protrude from the bottom surface of the groove.

  When the above-described auxiliary sliding surface is provided, the following configuration can be adopted. That is, the assembly auxiliary cylindrical part is disposed inside the main body part so as to form an annular gap in the radial direction from the inner peripheral surface of the main body part, and the assembly auxiliary cylindrical part is formed on the second end surface side. A connecting rib is formed in the circumferential direction to connect the outer peripheral surface of the portion and the inner peripheral surface of the main body in a state in which elastic displacement in the radial direction on the first end surface side of the assembly auxiliary cylindrical portion is allowed. On the other hand, on the outer peripheral surface of the rotation supporting convex portion, a retaining convex portion for retaining the auxiliary auxiliary cylindrical portion is formed at a position corresponding to the first end surface of the auxiliary auxiliary cylindrical portion. The auxiliary sliding surface is formed on the second end surface side of the connecting rib. Space saving is further achieved by forming an auxiliary sliding surface using a connecting rib that connects the assembling auxiliary cylindrical part and the main body part, which is necessary for assembling the dial operating part. In addition, since the cam sliding surface is formed on the second end surface of the main body, there is an advantage that the auxiliary sliding surface can be inevitably formed at a position different from the cam sliding surface in the radial direction.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of the front appearance of an in-vehicle operation unit U to which the present invention is applied. This in-vehicle operation unit U is for operating an automobile (vehicle) air conditioner as an in-vehicle electronic device, and has a resin casing 200 (operation panel). Dial-type operating devices 1A, 1B, 1C (hereinafter collectively referred to as “1” when collectively referred to) are respectively provided on the front surface of the housing 200 (which forms the front surface of the in-vehicle operation unit U). To be represented). The dial type operation devices 1A, 1B, and 1C are mounted on the housing 200 so as to be capable of rotating operation, adjacent to each other in a horizontal row.

  The dial type operation devices 1A, 1B, and 1C are all for operating the air conditioning function. The dial type operation device 1A is used as an air conditioning temperature setting unit, and the dial type operation device 1B is used as an air conditioning outlet switching setting unit. The type operation device 1 </ b> C functions as a blowing air volume switching setting unit. On the front surface of the housing 200, function display areas 201A, 201B, and 201C are formed along the circumferential direction of the dial operation unit 10 of each dial type operation device 1A, 1B, and 1C. In any case, by rotating the dial operation unit 10 and aligning the function instruction mark 2I with a predetermined angular position on the function display areas 201A, 201B, 201C, a desired function selection state (or function setting) Status).

  The dial operation unit 10 of the dial type operation device 1A is subdivided in angular positions that can be held more than the other two dial type operation devices 1B and 1C so that the temperature setting can be changed semi-continuously. . On the other hand, the dial type operating devices 1B and 1C each have five angle holding positions arranged at equal angular intervals. In the dial type operation device 1B for setting the air outlet, five of them are “face speech, face + foot speech, foot speech, foot + def speech, differential speech”, and in the dial operation device 1C for air volume setting, “Off (stop blowing), low (air volume stage I: may be auto), air volume stage II, air volume stage III, high (air volume stage IV)”.

  As shown in FIG. 4, any of the dial type operation units 1 has a rotational angle displacement generated in the dial operation unit 10 in accordance with the rotation operation of the dial operation unit 10 and the dial operation unit 10. Displacement converting means 100 for converting the axial displacement generated in the axial direction; displacement detecting output means 70 for detecting the converted axial displacement and outputting rotational angle position information of the dial operation unit 10 based on the detection result; Is provided. In the present embodiment, in FIG. 4, in the rotational axis direction of the dial operation unit 10, it is the operated side (that is, the side on which the user reaches for operation on the front side of the housing 200: FIG. The upper end surface is defined as the first end surface, and the opposite end surface is defined as the second end surface.

  The dial operation unit 10 has a cylindrical main body 21, and the non-rotating auxiliary device 3 is incorporated inside the main body 21 so as to be exposed on the first end surface side of the dial operation unit 10. . As shown in FIG. 1, each auxiliary device 3 is a push button switch, and is provided with an indicator 4 (in this case, composed of a light emitting device such as an LED) indicating an on / off state. In order to secure the operation mechanism of the auxiliary device inside the main body 21, the displacement detection output means 70 is provided outside the auxiliary device 3 in the radial direction with respect to the rotation axis.

  The main body 21 is mounted on the housing 200 so as to be rotatable around the rotation axis and the position of the first end surface in the rotation axis is unchanged. On the other hand, the displacement converting means 100 has a displacement forming surface 23P formed in a spiral gradient shape along the circumferential direction of the second end surface of the main body 21 as shown in FIG. In FIG. 4, the displacement detection output means 70 is provided on the support base 61 so as to face the axial direction displacement forming surface 23P at a predetermined angular position around the rotational axis, thereby forming the displacement in the rotational axis direction. It has an axial position detector 70 that detects the position of the surface 23P. In the present embodiment, the support base 61 is a wiring board on which the displacement detection output means 70 (linear variable resistance unit described later) and the tact switch 62 are mounted.

  Specifically, the displacement converting means 100 is formed separately from the dial operation unit 10, and is arranged in addition to the detection displacement unit 71 disposed so as to be displaceable in the axial direction of the dial operation unit 10, and the dial operation unit 10. A displacement conversion transmission mechanism 23 is provided for converting the rotational operation displacement to be transmitted to the detection displacement unit 71 by converting it into displacement in the operation axis direction. The displacement detection output means 70 detects the position in the axial direction of the detection displacement unit 71 and outputs the rotational angle position information of the dial operation unit 1 based on the detection result.

  In the present embodiment, as shown in FIG. 6, the displacement detection output means 70 is formed with a sliding electrical contact portion 76 that advances and retreats integrally with the detection displacement portion 71 in the rotation axis direction, and slides while being formed in the rotation axis direction. A variable resistor having a resistance conductor 75 that is resistance-divided by an electrical contact portion 76 is provided. As shown in FIG. 2, the resistance conductor 75 has one end (terminal 72A: # 1) connected to a signal power supply (+5 V here) and the other end (terminal 72B: # 2) grounded. The sliding electrical contact portion 76 functions as an output point (terminal 72C: # 3) of the divided voltage of the resistance half bridge generated by dividing the resistance conductor 75 by the sliding electrical contact portion 76.

  Since the rotation angle position of the dial operation unit 10 is reflected in the divided voltage, for example, the divided voltage can be input to the controller 153 constituted by an ECU or the like. The controller 153 grasps the device setting instruction content corresponding to the operation angle position of the dial operation unit 10 from the input value of the divided voltage, and issues a drive instruction to the drive device, here, the motor 152 (the driver 151). The motor 152 drives a cool / warm air mix damper in the dial type operating device 1A for setting the air conditioning temperature, and the dial switching damper in the dial type operating device 1B for setting the air outlet blowing switching. Is to drive. Further, in the dial type operating device 1C for setting the blowing air volume, the motor 152 is a fan motor.

  The displacement conversion transmission mechanism 100 includes an intermediate displacement portion 23 that moves forward and backward in the rotational axis direction following the rotational operation displacement in both the forward and reverse directions of the dial operation portion 10. In the rotational axis direction of the dial operation unit 10, when the direction from the first end surface to the second end surface is the forward direction and the opposite direction is the backward direction, the detection displacement unit 71 is placed in the middle as shown in FIG. A backward biasing means 77 (FIG. 6) for biasing in the backward direction toward the displacement portion 23 is provided. When the intermediate displacement portion 23 moves forward, the detection displacement portion 71 is driven to be driven in the forward direction by the intermediate displacement portion 23 against the biasing force of the backward biasing means 77, while the intermediate displacement portion 23 moves backward. At this time, it is driven backward by following the intermediate displacement portion 23 by the biasing force of the backward biasing means 77.

  In this embodiment, the backward biasing means is an elastic member 77 (FIG. 6: here a coil spring) provided on the opposite side of the intermediate displacement portion 23 with respect to the detected displacement portion 71 in the rotational axis direction, and is supported in FIG. The base body 61 supports the elastic member 77 from the side opposite to the detection displacement portion 71. The elastic member 77 is compressed between the intermediate displacement portion 23 and the support base 61 with a displacement corresponding to the forward stroke of the intermediate displacement portion 23.

  As shown in FIG. 3, the displacement conversion transmission mechanism is provided on the second end face side of the dial operation unit 10, and is formed with a cam sliding surface 23 </ b> P having a spiral gradient shape along the rotational circumferential direction of the dial operation unit 10. As the intermediate displacement portion 23, the axial displacement portion 71 that advances and retreats in the rotational axis direction by sliding along the cam sliding surface 23 </ b> P as the dial operation portion 10 rotates forward and backward. The cam mechanism 100 is provided with a cam follower 71.

  As shown in FIG. 6, the cam follower 71 and the elastic member 76 are incorporated in a linear variable resistance unit 70 that constitutes a displacement detection output means. The linear variable resistance unit 70 includes a case 73 whose upper surface is open and a cap portion 74 that closes the opening. In the drawings, the structure of the linear variable resistance unit 70 is described with the opening facing upward, but the opening is not necessarily upward depending on the device mounting direction (therefore, “up” or “down” in the description). Does not limit the mounting direction of the linear variable resistance unit 70).

  The case 73 is a resin molded product, and a lead frame 78 is disposed along the inner wall surface thereof. The lead frame 78 is made of metal and has a plurality of terminal frame portions 78A, 78B, 78C. A horizontal frame part 78H is integrated with the upper end of the terminal frame part 78A. The lower end sides of the terminal frame portions 78A, 78B, 78C penetrate the bottom of the case 73 and are electrically connected to the board surface mounting pads 72A, 72B, 72C formed on the back surface thereof. A vertically long resistive conductor 75 made of a carbon film is formed between the central terminal frame portion 78B and the horizontal frame portion 78H. The lead frame 78 is fixed to the case 73 by insert molding so that the main surface is flush with the inner wall surface of the case.

  A positioning projection 73b for positioning a coil spring forming the elastic member 77 is formed on the upper surface of the bottom of the case 73, and the lower end of the coil spring 77 is fitted therein. On the other hand, a cam follower 71 is disposed in contact with the upper end side of the coil spring 77. The cam follower 71 is a resin molded product in which the upper end portion that contacts the cam sliding surface 23 (FIG. 3) is formed in a spherical shape, the main body portion is formed in a cylindrical shape, and the lower end side thereof is reduced in diameter to be a coil spring 77. It is fitted inside the upper end of.

  The upper end portion of the cam follower 71 protrudes to the upper surface side through a through hole 74h formed in the cap portion 74, and a metal sliding frame 79 is attached to the lower end portion in the lateral direction. Sliding electrical contact portions 76 and 76 are formed at both ends of the sliding frame 79. One is in contact with the resistance conductor 75 and the other is in contact with the terminal frame portion 78C so as to be slidable in the vertical direction. The sliding frame 79 is made of a spring metal material (for example, phosphor bronze or beryllium copper) together with the sliding electrical contact portions 76 and 76. Each of the sliding electrical contact portions 76 and 76 has a belt-like shape extending downward from the end of the sliding frame 79, and a bending raising spring portion for forming a contact is formed at an intermediate position between the resistance conductor 75 or the terminal frame portion. Each of them is elastically pressed against 78C.

  As the dial operation unit 10 rotates, the cam follower 71 advances and retreats in the vertical direction of FIG. 6. As shown in FIG. 7A, the sliding electrical contact portions 76 and 76 are resisted at a division ratio that uniquely corresponds to the position of the cam follower 71. The conductor 75 is divided. Thereby, the divided voltage appearing on the pad 72C changes linearly as shown in FIG. 7B. In the present embodiment, the nominal resistance value of the resistance conductor 75 is set to 10 kΩ, and the maximum protrusion displacement of the cam follower 71 is set to 7.5 mm.

  As shown in FIG. 12, the entire cam sliding surface 23P can be formed as a continuous inclined surface. In particular, when it is necessary to switch the angular position of the dial operation unit 10 continuously (or semi-continuously), such as the dial type operating device 1A for air conditioning temperature setting in FIG. 1, the cam sliding surface 23P is used in this form. It is effective to form. On the other hand, when it is necessary to switch the angular position of the dial operating unit 10 intermittently, such as the dial type operating device 1B for switching the air outlet or the dial type operating device 1C for switching the air volume, as shown in FIG. It is desirable that the sliding surface 23P is formed in a step shape in which the flat surface sections 24 and the inclined surface sections 25 are alternately formed along the rotational circumferential direction of the dial operation unit 10. As shown in FIG. 8, as long as it is within the flat surface section 24, even if the rotational displacement of the dial operation unit 10 changes, all output voltages showing the same angular position can be obtained, and the angle of the dial operation unit 10 as described above. This is effective when the position is detected stepwise.

  A bottom view of the cam sliding surface 23P is shown below FIG. The inclined surface section 25 is indicated by a hatched area. T1 / T2 indicates the rotation limit position of the dial operation unit 10, and rotation beyond the rotation limit position is restricted by stopper engagement portions (not shown) provided on the casing 200 and the main body 21, respectively. It has become so.

  Next, as shown in FIG. 2, the dial operation unit 10 has a cylindrical main body 21, and a cam sliding surface 23 </ b> P is formed on the end surface of the main body 21. The main body 21 is concentrically extrapolated with respect to the rotation support convex part 50 having a cylindrical outer peripheral surface that protrudes from the front surface of the housing 200. In addition, the operation panel at the base end position of the rotation support convex portion 50 has an annular shape that conceals the cam portion 23 formed on the second end surface side of the main body portion 21 in a form surrounding the rotation support convex portion 50. The groove portion 53 is formed. The cam follower 71 protrudes from the bottom surface of the groove 53 at the through hole 54.

  As shown in FIG. 4, an assembly auxiliary cylindrical portion 22 is arranged inside the main body portion 21 so as to form an annular gap in the radial direction from the inner peripheral surface of the main body portion 21. Further, the outer peripheral surface of the assembly auxiliary cylindrical portion 22 and the inner peripheral surface of the main body portion 21 on the second end surface side are subjected to elastic displacement in the radial direction on the first end surface side of the assembly auxiliary cylindrical portion 22. Connecting ribs 26 that are connected in an allowed state are formed in the circumferential direction. On the other hand, on the outer peripheral surface of the rotation support convex portion 50, the retaining convex portion 55 for retaining the assembly auxiliary cylindrical portion 22 at a position corresponding to the first end surface of the assembly auxiliary cylindrical portion 22. Is formed. The connecting rib 26 is formed in an annular shape along the outer peripheral surface of the main body 21. Further, the retaining protrusion 55 has a triangular cross section in which the bottom side forms a contact stop surface and the oblique side is a guide surface that guides insertion of the assembly auxiliary cylindrical portion 22 from the first end surface side ( However, the guide surface may be rounded.) The main body 21, the assembly auxiliary cylindrical portion 22, and the connecting rib 26 are made of an integral resin injection molded body (for example, made of ABS resin) 2.

  As shown in FIG. 5, the molded product 2 is extrapolated to the rotation support convex portion 50 from the second end face side. The assembly auxiliary cylindrical portion 22 climbs over the retaining projection 55 while elastically expanding its diameter, and when its first end surface passes the position of the retaining projection 55, it is elastically restored and prevented from slipping.

  Next, the auxiliary device 3 configured as a push button switch is a resin molded body having a disk-shaped button body 30 and an advancing / retracting cylinder 32 projecting from the back surface of the button body 3 (the material is a dial). The ABS resin is the same as the resin injection molded product 2 constituting the operation unit). The advance / retreat cylinder 32 is inserted into the cylindrical rotation support convex portion 50 in the axial direction, and can advance and retreat within the rotation support projection 50 with a constant stroke. At the time of advance, the tact switch 62 mounted on the substrate (support base) 61 is urged by its second end surface (always, the switch is moved by a spring (not shown) incorporated in the tact switch 62). Back biased to a non-operating position). As shown in FIG. 3, guide ribs 33 in the axial direction are formed on the outer peripheral surface of the advance / retreat cylinder 32, and guide grooves (a pair of groove forming ribs 52 formed on the inner peripheral surface of the cylindrical rotation support convex portion 50 are formed. , 52) to guide the button pressing operation in the forward / backward direction. The set of the guide rib 33 and the guide groove 51 also serves to prevent relative rotation of the advance / retreat cylinder 32 with respect to the rotation support convex portion 50. In the present embodiment, a plurality of sets of guide ribs 33 and guide grooves 51 are provided at predetermined intervals in the circumferential direction of the advance / retreat cylinder 32.

  Hereinafter, various modifications of the dial type operation device will be described (the same reference numerals are given to the same parts as those already described, and detailed description thereof will be omitted. First, the rotation operation of the dial operation unit 10 will be described. In the configuration that allows in stages, a plurality of different angle holding positions are determined around the rotation axis with respect to the dial operation unit 10, and a plurality of the dial operation units 10 are provided in a state in which the rotation operation of the dial operation unit 10 is permitted. It is more advantageous to provide an angle position holding means for holding at any one of the angle holding positions, in which case the cam follower 71 holds the angle corresponding to the angle phase of the dial operation unit 10 located in the flat surface section 24. If the position is determined, the angular position holding accuracy of the dial operation unit 10 in the flat surface section 24 is further improved.

  The angular position holding means can be configured as follows, for example. That is, as shown in FIG. 9, an auxiliary sliding surface 91 is formed on the support base 61 separately from the cam sliding surface 23 </ b> P in the rotational circumferential direction of the dial operating unit 10 on the second end surface of the dial operating unit 10. The position around the rotation axis is fixed at a position facing the auxiliary sliding surface 91, and the auxiliary sliding relatively slides on the auxiliary sliding surface 91 with the rotation of the dial operation unit 10 at its tip. A member 90 is provided. The angular position holding means includes a position holding convex portion 90t that is formed to project in the rotational axis direction on one of the auxiliary sliding surface 91 and the auxiliary sliding member 90, and a position holding concave portion 92 that fits the position holding convex portion 90t. Can be included. When the dial operation unit 10 is in an angle phase corresponding to the angle holding position, the position holding convex portion 90t is fitted into the position holding concave portion 92, and the position holding convex portion 90t is moved by applying a rotation operation in this state. The position holding recess 92 is detached from the angle holding position in such a manner as to elastically climb over the corresponding edge in the rotation direction. According to this configuration, the angle holding effect is enhanced by the fitting between the position holding convex portion 90t and the position holding concave portion 92, and the position holding convex portion 90t corresponds to the position holding concave portion 92 when leaving the angle holding effect. Since moderate moderation resistance is developed when the edge is elastically overcome, the operability at the time of aligning the dial operation unit 10 at a desired angle is also improved.

  As shown in the lower part of FIG. 9, the auxiliary sliding surface 91 and the cam sliding surface 23 </ b> P are formed at different positions in the radial direction with respect to the rotation axis so that at least a part of the formation angle section overlaps. According to this configuration, since there is no circumferential interference between the auxiliary sliding surface 91 and the cam sliding surface 23P, the degree of freedom in setting the operation allowable angle range for the dial operation unit 10 is greatly increased, and in particular, 180 °. An allowable operating angle range exceeding can be set without any problem. T1 → T2 (large angle side) represents the formation section of the cam sliding surface 23P, and T1 ′ → T2 ′ (large angle side) represents the formation section of the auxiliary sliding surface 91. In the configuration of FIG. 9, the auxiliary sliding surface 91 is formed on the second end surface side of the connecting rib 26. By forming the auxiliary sliding surface 91 using the connecting rib 26 that connects the assembly auxiliary cylindrical portion 22 and the main body portion 21, which is necessary for assembling the dial operation portion 10, Further space saving can be achieved, and the cam sliding surface 23P is formed on the second end surface of the main body 21. Therefore, the auxiliary sliding surface 91 is necessarily in a radial direction from the cam sliding surface 23P. There is an advantage that it can be formed at different positions.

  When the position holding concave portion 92 is formed on the auxiliary sliding surface 91 and the position holding convex portion 90t is formed on the auxiliary sliding member 90, the support base 61 is provided with the position holding convex portion of the position holding concave portion 92 at the angle holding position. An auxiliary elastic member 59 that elastically biases 90t into the position holding recess 92 can be provided. In this case, with the rotation operation, the position holding convex portion 90t separates from the position holding concave portion 92 against the biasing force by the auxiliary elastic member 59 and is pressed by the elastic biasing force. 91 can slide relative to each other. According to this configuration, by appropriately adjusting the elastic constant of the auxiliary elastic member 59, it is possible to adjust the moderation resistance feeling when the position holding convex portion 90t elastically crosses the corresponding edge of the position holding concave portion 92 to an appropriate value, Moreover, the malfunction that the dial operation part 10 changes an angular position by a small external force or vehicle vibration by the sliding friction by the elastic urging | biasing force can also be prevented.

  In the configuration of FIG. 9, the auxiliary sliding surface 91 is an auxiliary cam sliding surface 91 having a helical gradient form in which the gradient forming directions are opposite to those of the cam sliding surface 23P. The auxiliary sliding member 90 is an auxiliary cam follower 90 that advances and retreats in the direction opposite to the cam follower 71 in the direction of the rotation axis as the dial operation unit 10 rotates. Further, the auxiliary cam follower 90 is displaced by the elastic member 77 compressed between the cam follower 71 and the support base 61 by the displacement corresponding to the advance stroke of the cam follower 71 and the auxiliary cam follower 90 by the displacement corresponding to the advance stroke. And an auxiliary elastic member 59 that is compressed between the support base 61 and the support base 61. (The new cam portion 23 composed of the auxiliary cam sliding surface 91 and the auxiliary cam follower 90 is hereinafter also referred to as “auxiliary cam portion 23”). In FIG. 9, the auxiliary elastic member 59 is configured by a coil spring and is embedded in the bottom 58 of the groove 53 of the housing 200.

According to the above configuration, the following two effects are achieved.
(1) When the cam follower 71 is pressed and urged against the cam sliding surface 23P by the elastic member 77, if the cam sliding surface 23P with which the cam follower 71 contacts is inclined in the rotational circumferential direction, the elastic member 77 is pressed. When the cam follower 71 is rotated in a direction to try to climb with respect to the inclined surface due to the urging force, the cam follower 71 is rotated in a direction to push back the rotation operation. A rotational reaction force is generated in the direction in which the rotational operation is accelerated, and both of them cause a feeling of strangeness in the rotational operation. However, as described above, if an auxiliary cam mechanism having the auxiliary cam sliding surface 91 whose gradient direction is opposite to that of the cam sliding surface 23P is provided, the auxiliary cam follower 90 is prevented from being biased by the auxiliary elastic member 59. An auxiliary rotational reaction force is generated in a direction that cancels the rotational reaction force from the cam follower 71, and the uncomfortable feeling of the rotation operation can be reduced.

(2) Since the urging force of the elastic member 77 increases as the compression displacement of the elastic member 77 increases, when the dial operation unit 10 is rotated in the direction in which the elastic member 77 is compressed, the dial operation unit 10 As the rotation angle increases, the sliding resistance by the cam follower 71 increases, and the user feels that the operation becomes heavier as the dial operation unit 10 is turned. However, if the auxiliary cam mechanism as described above is provided, the relationship between the rotational direction of the dial operation unit 10 and the increase / decrease direction of the compression displacement of the auxiliary elastic member 59 is opposite to that of the elastic member 77, and the elastic member Since the sliding resistance of the cam follower 71 by 77 and the sliding resistance of the auxiliary cam follower 90 by the auxiliary elastic member 59 are complementarily added, the increase / decrease width of the sliding resistance according to the rotation angle can be reduced. In particular, when the following condition is satisfied, the sliding resistance of the dial operation unit 10 can be kept substantially constant regardless of the rotation angle.
The elastic constants of the elastic member 77 and the auxiliary elastic member 59 are set to be the same.
The shape of the cam sliding surface 23P and the auxiliary cam sliding surface 91 is set so that the compression displacement width of the elastic member 77 and the compression displacement width of the auxiliary elastic member 59 are equal in the possible operation angle section of the dial operation unit 10. Determine.

  In the case where the cam sliding surface 23P is formed in a stepped shape as described above, the auxiliary cam sliding surface 91 is formed with the flat surface section 24 along the rotational circumferential direction of the dial operation unit 10 as shown in the lower part of FIG. The cam sliding surface 23P can be formed in a staircase shape in which inclined surface sections 95 whose inclination directions are opposite to each other are alternately formed (the upward direction of inclination of the inclined surface sections 25 and 95 is indicated by an arrow in the figure. The direction is shown.) In this case, the auxiliary cam follower 90 abuts on any inclined surface section 95 on the auxiliary cam sliding surface 91 side in the rotational angle phase where the cam follower 71 abuts on any inclined section 25 on the cam sliding surface 23P side. Thus, the formation position of the inclined surface section 95 on the auxiliary cam sliding surface 91 side is determined. In this case, when the cam follower 71 passes through the inclined surface section 25 of the cam sliding surface 23P, as shown in FIG. 10 (illustrated in the case of the dial type operating device 1C for setting the change of the blowing air volume). The rotational reaction force M1 can be offset by the rotational reaction force M2 when the auxiliary cam follower 90 passes through the inclined surface section 95 of the auxiliary cam sliding surface 91, and the uncomfortable feeling during operation can be reduced.

  As shown in the lower part of FIG. 9 and FIG. 10, the aforementioned position holding recess 92 can be formed in the flat surface section 94 on the auxiliary cam sliding surface 91 side. By providing the auxiliary cam follower 90 as the position holding convex portion 90t and engaging the position holding concave portion 92 with the position holding concave portion 92, an angular position holding effect (that is, a feeling of moderation) is imparted to the dial operating portion 10 at a position corresponding to the flat surface section 94. it can.

  In addition, as shown in FIG. 11, the auxiliary | assistant sliding surface 91 can also be the structure which does not provide the gradient for cams. In FIG. 11, a plurality of position holding recesses 92 are formed at predetermined intervals corresponding to the angle holding positions.

  On the other hand, in the dial type operating device 1A for setting the air conditioning temperature of FIG. 1, as described above, the cam sliding surface 23P may be formed as a continuous inclined surface as shown in FIG. In this case, since there is no flat surface section, the cam sliding surface 23P always receives the rotational reaction force from the cam follower 71 over substantially the entire range of the operable angle section of the dial operation unit 10. In this case, as shown in FIG. 13, it is possible to offset the rotational reaction force by setting the auxiliary sliding surface 91 as an auxiliary cam sliding surface 91 having a continuous inclined surface opposite to the cam sliding surface 23P. Is desirable. In this case, the auxiliary cam sliding surface 91 can be a simple inclined surface that does not form a position holding recess as shown by the alternate long and short dash line, and the auxiliary cam follower 90 (position holding projection as shown by the solid line). The position holding recess 92 for engagement with the auxiliary cam sliding surface 91 may be formed in close contact with each other.

  FIG. 14 shows a modification of the displacement conversion transmission mechanism. An intermediate displacement portion that follows the rotational operation displacement in both the forward and reverse directions of the dial operation portion 10 and moves forward and backward in the direction of the rotational axis is shown in FIG. The cam portion 23 is replaced with a male screw member 151. In this configuration, the first gear 152 that is arranged concentrically with the dial operation unit 10 and rotates integrally with the dial operation unit 10, and the second gear meshing with the first gear 152 in such a manner that the first gear 152 can advance and retreat in the rotational axis direction. And a gear 153. The male screw member 151 protrudes from the second end surface of the second gear 153 in the rotation axis direction and rotates integrally with the second gear 153. The male screw member 151 is screwed from its own first end face side, and the female screw portion 150 for projecting the second end face side of the male screw member 151 from its own second end face is provided with a fixed position in the rotational axis direction. (Specifically, the internal thread 150 is provided at the bottom of the housing 200.

  The male screw member 151 is screwed into a female screw portion 150 formed so as to penetrate through the housing 200, and its front end surface (second end surface) abuts on the cam follower 71 of the linear variable resistance unit 70 similar to that in FIG. 4. Yes. On the other hand, the head of the male screw member 151 is provided with a first gear 152, which meshes with the second gear 153 formed on the outer peripheral surface of the dial operation unit 10 while allowing its own movement in the thrust direction. As the dial operation unit 10 rotates, the male screw member 151 rotates. Since the axial direction position of the female screw portion 151 is fixed, the male screw member 151 advances and retracts in the thrust direction with the rotation, and the second end face position is detected by the linear variable resistance unit 70. By adopting such a screw shaft mechanism, the dial operation unit 10 can be held at an arbitrary rotational angle position without using an engagement mechanism such as the above-described position holding convex portion / position holding concave portion. There is. Further, the protruding amount of the male screw member 151 from the female screw portion 150 can be accurately changed by the screw shaft mechanism corresponding to the rotation angle of the dial operation portion 10.

  In the present embodiment, the number of teeth of the first gear 152 is set smaller than the number of teeth of the second gear 153 (that is, the diameter of the first gear 152 is smaller than that of the second gear 153). The first gear 152 is rotated a plurality of times as the dial operating unit 10 is operated in full scale rotation from one angle limit position to the other angle limit position. Further, the second end surface side of the assembly auxiliary cylindrical portion 22 is extended in the axial direction from the second end surface of the main body portion 2, and a second gear 153 is formed in the extended portion. As a result, the first gear 152 can be disposed close to the rotational axis side of the dial operation unit 10, and space saving is achieved.

  In addition to the linear variable resistance unit as described above, various types of displacement detection output means can be employed. In the example illustrated in FIG. 15, a load sensor (which can be configured by a piezoelectric element, a capacitor whose capacitance changes according to a load, a strain gauge, or the like) 133 is used. In FIG. 15, the elastic member 131 is compressed and displaced as the cam follower 71 advances and retreats. Then, the elastic force of the elastic member 131 is transmitted to the load sensor 133. That is, the rotational displacement of the dial operation unit 10 is converted into the advance / retreat displacement of the cam follower 71 (the cam mechanism of FIG. 4 or the screw mechanism of FIG. 14), and the elastic force generated in the elastic member 131 according to the advance / retreat displacement is converted to the load sensor 133. By detecting at, the rotational displacement of the dial operation unit 10 can be known from the output value of the load sensor 133. A spring receiving member 132 is interposed between the load sensor 133 and the elastic member 131.

  In FIG. 16, a reflecting mirror 162 made of a metal film or the like is formed on the displacement forming surface 23P, and the position of the displacement forming surface 23P in the rotation axis direction by the optical distance sensor 160 is used as information on the reflected light from the reflecting mirror 162. A displacement detection output means is configured to detect based on this. The optical distance sensor 160 irradiates the laser pulse LP from the light projecting unit 161 toward the reflecting mirror 162, and receives the reflected pulse by the light receiving unit 162. From the flight time of the laser pulse LP to the displacement forming surface 23P. It measures distance.

The front view which shows an example of the vehicle operation unit which is one of the application objects of this invention. The circuit diagram which shows an example of the electrical structure of the dial type rotary operation apparatus of this invention. The disassembled perspective view which shows one Embodiment of the dial type rotary operation apparatus of this invention. Explanatory drawing which shows the longitudinal cross-sectional view of FIG. 4 with the bottom view of a main-body part. Action | operation explanatory drawing of an assembly | attachment auxiliary | assistant cylindrical part. Front sectional drawing of a linear variable resistance unit, its AA sectional drawing, and BB sectional drawing. The equivalent circuit diagram of a linear variable resistance unit. The graph which shows an example of the operation characteristic of a linear variable resistance unit. Action | operation explanatory drawing of the dial-type rotary operation apparatus of FIG. Explanatory drawing which shows the longitudinal cross-sectional view of the 1st modification which concerns on the dial-type rotary operation apparatus of FIG. 3 with the bottom view of a main-body part. Action | operation explanatory drawing of the dial-type rotary operation apparatus of FIG. The schematic diagram which shows the modification of an auxiliary | assistant sliding surface. The perspective view which shows the modification of a cam part. Explanatory drawing of an effect | action of the dial type rotary operation apparatus at the time of using the cam part of FIG. The longitudinal cross-sectional view of the 2nd modification which concerns on the dial type rotary operation apparatus of FIG. The longitudinal cross-sectional view which shows the 1st modification of a displacement detection output means. The longitudinal cross-sectional view which shows a 2nd modification similarly.

Explanation of symbols

3 Auxiliary device 10 Dial operation part 21 Body part 23 Cam part (intermediate displacement part 23)
23P Cam sliding surface (displacement forming surface)
24 Flat surface section 25 Inclined surface section 50 Rotating support convex portion 53 Groove portion 59 Auxiliary elastic member 61 Substrate (support base)
70 linear variable resistance unit (axial position detector, displacement detection output means)
71 Cam follower (detection displacement part)
75 Resistive conductor 76 Sliding electrical contact portion 77 Elastic member (retraction biasing means)
90 Auxiliary cam follower (auxiliary sliding member)
90t Position holding projection 91 Auxiliary cam sliding surface (auxiliary sliding surface)
92 Position holding recess 94 Flat surface section 95 Inclined surface section 100 Cam (displacement conversion transmission mechanism)
200 case

Claims (21)

A dial operation unit; and a displacement converting means for converting a rotational angle displacement generated in the dial operation unit in accordance with a rotation operation of the dial operation unit into an axial direction displacement generated in a rotation axis direction of the dial operation unit; A dial type operation device comprising: a displacement detection output means for detecting an axial displacement and outputting rotation angle position information of the dial operation unit based on the detection result. The dial operation portion has a cylindrical main body portion with the end surface on the operated side in the rotation axis direction of the dial operation portion as a first end surface and the end surface opposite to the second end surface as a second end surface. A non-rotating auxiliary device is incorporated inside the dial operation unit so as to be exposed on the first end surface side of the dial operation portion, and the displacement detection output means is located outside the auxiliary device in the radial direction with respect to the rotation axis. The dial type operating device according to claim 1, wherein the dial type operating device is provided. The main body is mounted on a housing so as to be rotatable about the rotation axis and so that the position of the first end surface in the rotation axis direction is unchanged. A displacement forming surface formed in a spiral gradient shape along the circumferential direction of the second end surface, and the displacement detection output means is configured to have the axis line at a predetermined angular position around the rotation axis on the support base. The dial type operation device according to claim 2, further comprising an axial position detection unit that is provided so as to face the direction displacement forming surface and detects a position of the displacement forming surface in the rotation axis direction. A detection displacement unit formed separately from the dial operation unit and arranged to be displaceable in the axial direction of the dial operation unit, and a rotational operation displacement applied to the dial operation unit with respect to the detection displacement unit. A displacement conversion transmission mechanism that converts the displacement into an axial displacement and transmits the displacement, and the displacement detection output means detects the axial position of the detection displacement portion, and based on the detection result, the rotation angle position information is detected. The dial type operating device according to any one of claims 1 to 3, wherein the dial type operating device is output. The displacement detection output means includes a sliding electrical contact portion that advances and retreats integrally with the detection displacement portion in the rotational axis direction, and a resistance that is formed in the rotational axis direction and is resistance-divided by the sliding electrical contact portion. The dial type operating device according to claim 4, further comprising a variable resistor having a conductor. The displacement conversion transmission mechanism has an intermediate displacement portion that follows a rotational operation displacement in both forward and reverse directions of the dial operation portion and moves forward and backward in both directions in the rotational axis direction.
The end surface on the operated side in the rotation axis direction of the dial operation portion is the first end surface, and the end surface on the opposite side is the second end surface, while the end surface from the first end surface to the second end surface is the rotation axis direction. When the facing direction is the forward direction and the opposite direction is the backward direction, a backward biasing means for biasing the detection displacement portion toward the intermediate displacement portion in the backward direction is provided, and the detection displacement portion is When the intermediate displacement portion moves forward, the intermediate displacement portion is driven to move in the forward direction against the urging force of the reverse urging means, while when the intermediate displacement portion moves backward, the reverse biasing portion is driven. The dial type operating device according to claim 4 or 5, wherein the dial type operating device is driven backward by following the intermediate displacement portion by a biasing force of a biasing means. The reverse biasing means includes an elastic member provided on the opposite side of the intermediate displacement portion with respect to the detection displacement portion in the rotation axis direction, and a support base that supports the elastic member from the opposite side of the detection displacement portion. The dial type operating device according to claim 6, wherein the elastic member is compressed between the intermediate displacement portion and the support base by a displacement according to a forward stroke of the intermediate displacement portion. The displacement conversion transmission mechanism is provided on the second end face side of the dial operation portion, and the intermediate displacement portion is formed with a cam sliding surface having a helical gradient shape along the rotational circumferential direction of the dial operation portion. And a cam follower as the axial direction displacement portion that moves forward and backward in the rotational axis direction by sliding along the cam sliding surface with forward and reverse rotation of the dial operation portion. The dial type operating device according to claim 6 or 7, comprising a mechanism. 8. The dial type operating device according to claim 7, wherein the cam sliding surface has a stepped shape in which flat surface sections and inclined surface sections are alternately formed along a rotational circumferential direction of the dial operating portion. A plurality of different angle holding positions are determined around the rotation axis with respect to the dial operation unit, and the dial operation unit is held at any one of the plurality of angle holding positions in a state where the rotation operation of the dial operation unit is allowed. The dial type operating device according to claim 8 or 9, wherein an angular position holding means is provided. The dial type operating device according to claim 10, wherein the angle holding position is determined in accordance with an angular phase of the dial operating unit where the cam follower is positioned in the flat surface section. An auxiliary sliding surface is formed separately from the cam sliding surface in the rotational circumferential direction of the dial operating portion on the second end surface of the dial operating portion, while facing the auxiliary sliding surface on the support base. The position around the rotation axis is fixed at a position where the auxiliary sliding member is relatively slid on the auxiliary sliding surface along with the rotation of the dial operation portion at its tip, and the angular position is maintained. The means includes a position holding convex portion that protrudes in the direction of the rotation axis on one of the auxiliary sliding surface and the auxiliary sliding member, and a position holding concave portion that fits the position holding convex portion. Yes, when the dial operation part is in an angle phase corresponding to the angle holding position, the position holding convex part is fitted into the position holding concave part, and the position holding is performed by applying a rotation operation in this state. The convex part of the position holding concave part Rolling dial operating device according to claim 10 or claim 11 detached from the angular retention position corresponding edge in the form overcome elastically in the direction. The dial type operating device according to claim 12, wherein the auxiliary sliding surface and the cam sliding surface are formed at different positions in the radial direction with respect to the rotation axis so that at least a part of the forming angle section overlaps. The position holding concave portion is formed on the auxiliary sliding surface, the position holding convex portion is formed on the auxiliary sliding member, and the position holding concave portion is held on the support base at the angle holding position. An auxiliary elastic member that elastically biases the convex portion in a direction to fit the position holding concave portion is provided, and the position holding convex portion resists the biasing force by the auxiliary elastic member along with the rotation operation. The dial type operating device according to claim 12 or 13, wherein the dial type operating device is slid relative to the auxiliary sliding surface in a state of being detached from the holding recess and being pressed by the elastic biasing force. An auxiliary sliding surface is formed separately from the cam sliding surface in the rotational circumferential direction of the dial operating portion on the second end surface of the dial operating portion, while facing the auxiliary sliding surface on the support base. An auxiliary sliding member that is fixed at a position around the rotation axis and that slides relatively on the auxiliary sliding surface with the rotation of the dial operation unit at its tip,
The auxiliary sliding surface is an auxiliary cam sliding surface having a spiral gradient form in which the gradient forming direction is opposite to the cam sliding surface, and the auxiliary sliding member rotates with the rotation of the dial operation portion. An auxiliary cam follower that moves back and forth in the direction opposite to the cam follower in the axial direction,
An elastic member that is compressed between the cam follower and the support base at a displacement corresponding to the advance stroke of the cam follower, and an auxiliary cam follower and the support base at a displacement corresponding to the advance stroke of the auxiliary cam follower. The dial type operating device according to any one of claims 8 to 14, further comprising an auxiliary elastic member compressed between the two. The auxiliary cam sliding surface is provided with the requirements according to claim 9, and the auxiliary cam sliding surface has a flat surface section and an inclined surface whose inclination direction is opposite to the cam sliding surface along the rotational circumferential direction of the dial operation unit. In the rotational angle phase where the cam follower comes into contact with any inclined surface section on the cam sliding surface side, in a stepped shape in which the sections are alternately formed, any of the auxiliary cam sliding surface side The dial type operating device according to claim 13, wherein a formation position of the inclined surface section on the auxiliary cam sliding surface side is determined so that the auxiliary cam follower comes into contact with the inclined surface section. The dial type operating device according to claim 16, wherein the position holding recess according to claim 14 is formed in a flat surface section on the side of the auxiliary cam sliding surface. The dial type operating device according to any one of claims 8 to 17, wherein the dial operating portion has a cylindrical main body, and the cam sliding surface is formed on an end surface of the main body. The main body portion is concentrically extrapolated with respect to a rotation support convex portion having a cylindrical outer peripheral surface protruding from the front surface of the housing, and the operation panel is located at a base end position of the rotation support convex portion. Is formed with an annular groove portion concealing the cam portion formed on the second end surface side of the main body portion so as to surround the rotation support convex portion, and the cam follower protrudes from the bottom surface of the groove portion. The dial type operating device according to claim 18, which is arranged in the form of The assembly auxiliary cylindrical portion is disposed on the inner side of the main body portion so as to form an annular gap in a radial direction from the inner peripheral surface of the main body portion, and the second end surface. The outer peripheral surface of the assembly auxiliary cylindrical portion and the inner peripheral surface of the main body portion are connected on the side in a state where elastic displacement in the radial direction on the first end surface side of the assembly auxiliary cylindrical portion is allowed. A connecting rib is formed in the circumferential direction. On the other hand, on the outer peripheral surface of the rotation support convex portion, the assembly auxiliary cylindrical portion is prevented from coming off at a position corresponding to the first end surface of the assembly auxiliary cylindrical portion. The dial type operating device according to claim 19, further comprising: a retaining protrusion for forming the auxiliary sliding surface on the second end surface side of the connecting rib. A first gear that is arranged concentrically with the dial operation unit and rotates integrally with the dial operation unit; a second gear that meshes with the first gear in a form that allows the first gear to advance and retreat in the rotational axis direction; A male screw member that protrudes from the second end face of the second gear in the direction of the rotation axis and rotates integrally with the second gear, and a position in the direction of the rotation axis is fixedly provided, and the male screw member is on the first end face side thereof And a female screw part that projects the second end face side of the male screw member from its second end face, and the male screw member serves as the intermediate displacement part. Dial operation device.

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